<ion-tabs [selectedIndex]="mySelectedIndex">
  <ion-tab [root]="tab1Root" tabTitle="首页" tabIcon="home" tabUrlPath='main'></ion-tab>
  <ion-tab [root]="tab2Root" tabTitle="工作台" tabBadge="" tabIcon="apps" tabUrlPath='work'></ion-tab>
  <ion-tab [root]="tab3Root" tabTitle="通讯录" tabIcon="people" tabUrlPath='contact'></ion-tab>
  <ion-tab [root]="tab4Root" tabTitle="设置" tabIcon="settings" tabUrlPath='setting'></ion-tab>
</ion-tabs>
